pylibjpeg-libjpeg
A Python 3.7+ wrapper for Thomas Richter's libjpeg, with a focus on use as a plugin for pylibjpeg.
Linux, MacOS and Windows are all supported.
Installation
Dependencies
Installing the current release
pip install pylibjpeg-libjpeg
Installing the development version
Make sure Python and Git are installed. For Windows, you also need to install Microsoft's C++ Build Tools.
git clone --recurse-submodules https://github.com/pydicom/pylibjpeg-libjpeg
python -m pip install pylibjpeg-libjpeg
Supported JPEG Formats
Decoding
| ISO/IEC Standard | ITU Equivalent | JPEG Format |
|---|---|---|
| 10918 | T.81 | JPEG |
| 14495 | T.87 | JPEG-LS |
| 18477 | JPEG XT |
Encoding
Encoding of JPEG images is not currently supported
Supported Transfer Syntaxes
Decoding
| UID | Description |
|---|---|
| 1.2.840.10008.1.2.4.50 | JPEG Baseline (Process 1) |
| 1.2.840.10008.1.2.4.51 | JPEG Extended (Process 2 and 4) |
| 1.2.840.10008.1.2.4.57 | JPEG Lossless, Non-Hierarchical (Process 14) |
| 1.2.840.10008.1.2.4.70 | JPEG Lossless, Non-Hierarchical, First-Order Prediction (Process 14 [Selection Value 1]) |
| 1.2.840.10008.1.2.4.80 | JPEG-LS Lossless |
| 1.2.840.10008.1.2.4.81 | JPEG-LS Lossy (Near-Lossless) Image Compression |
Usage
With pylibjpeg and pydicom
from pydicom import dcmread
from pydicom.data import get_testdata_file
ds = dcmread(get_testdata_file('JPEG-LL.dcm'))
arr = ds.pixel_array
Standalone JPEG decoding
You can also decode JPEG images to a numpy ndarray:
from libjpeg import decode
with open('filename.jpg', 'rb') as f:
# Returns a numpy array
arr = decode(f.read())
# Or simply...
arr = decode('filename.jpg')
1 maintainer
Metadata
1 maintainer
Release files for pymedphys-pylibjpeg-libjpeg 1.3.1
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| pymedphys-pylibjpeg-libjpeg-1.3.1.tar.gz | 683.0 kB | Details |
Built distributions (wheels)
Total release size: 55.9 MB
Release files / pymedphys-pylibjpeg-libjpeg-1.3.1.tar.gz
| Download URL | pymedphys-pylibjpeg-libjpeg-1.3.1.tar.gz |
|---|---|
| Size | 683.0 kB |
| Tags | Source |
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Release files / pymedphys_pylibjpeg_libjpeg-1.3.1-cp310-cp310-win_amd64.whl
| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp310-cp310-win_amd64.whl |
|---|---|
| Size | 1.7 MB |
| Tags | CPython 3.10 Windows x86-64 |
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| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp310-cp310-win32.whl |
|---|---|
| Size | 1.7 MB |
| Tags | CPython 3.10 Windows x86-32 |
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| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl |
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| Size | 4.3 MB |
| Tags | CPython 3.10 Linux glibc 2.17+ x86-64 |
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| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp310-cp310-macosx_11_0_arm64.whl |
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| Size | 1.6 MB |
| Tags | CPython 3.10 macOS 11.0+ ARM64 |
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| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp310-cp310-macosx_10_9_x86_64.whl |
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| Tags | CPython 3.10 macOS 10.9+ x86-64 |
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| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp39-cp39-win_amd64.whl |
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| Size | 1.7 MB |
| Tags | CPython 3.9 Windows x86-64 |
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| Tags | CPython 3.9 Windows x86-32 |
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| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp39-cp39-macosx_11_0_arm64.whl |
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| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp39-cp39-macosx_10_9_x86_64.whl |
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| Tags | CPython 3.9 macOS 10.9+ x86-64 |
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| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp38-cp38-win_amd64.whl |
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| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp38-cp38-win32.whl |
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| Size | 1.7 MB |
| Tags | CPython 3.8 Windows x86-32 |
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| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp38-cp38-macosx_11_0_arm64.whl |
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| Size | 1.6 MB |
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| Size | 1.7 MB |
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| Tags | CPython 3.7 CPython 3.7 pymalloc Windows x86-32 |
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| Size | 4.3 MB |
| Tags | CPython 3.7 CPython 3.7 pymalloc Linux glibc 2.17+ x86-64 |
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| Size | 4.2 MB |
| Tags | CPython 3.7 CPython 3.7 pymalloc Linux glibc 2.12+ x86-64 |
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| Download URL | pymedphys_pylibjpeg_libjpeg-1.3.1-cp37-cp37m-macosx_10_9_x86_64.whl |
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| Size | 1.6 MB |
| Tags | CPython 3.7 CPython 3.7 pymalloc macOS 10.9+ x86-64 |
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